12684606351 has 8 divisors (see below), whose sum is σ = 17496008880. Its totient is φ = 8164804032.

The previous prime is 12684606313. The next prime is 12684606367. The reversal of 12684606351 is 15360648621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12684606351 - 2²⁷ = 12550388623 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684606371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72899950 + ... + 72900123.

It is an arithmetic number, because the mean of its divisors is an integer number (2187001110).

Almost surely, 2^12684606351 is an apocalyptic number.

12684606351 is a deficient number, since it is larger than the sum of its proper divisors (4811402529).

12684606351 is a wasteful number, since it uses less digits than its factorization.

12684606351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145800105.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 12684606351 in words is "twelve billion, six hundred eighty-four million, six hundred six thousand, three hundred fifty-one".